Method for transmitting signal, network device and terminal device

ABSTRACT

Disclosed are a method for transmitting a signal, a network device and a terminal device. The method includes: a first network device determining, in a first frequency band corresponding to the first network device, a time-frequency resource for transmitting a signal; and the first network device carrying out the transmission of the signal with a first terminal device on the time-frequency resource.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a 371 application of International Application No.PCT/CN2017/088508, filed on Jun. 15, 2017, the entire disclosure ofwhich is hereby incorporated by reference.

TECHNICAL FIELD

Implementations of the present disclosure relate to the communicationfield, and more particularly, relate to a method for transmitting asignal, a network device, and a terminal device.

BACKGROUND

At present, in research of New Radio (NR), how to improve transmissionreliability is always a research problem due to a working frequency bandfor transmitting signals.

SUMMARY

In view of this, implementations of the present disclosure provide amethod for transmitting a signal, a network device and a terminaldevice.

In a first aspect, there is provided a method for transmitting a signal,and the method includes: determining, by a first network device, atime-frequency resource for transmitting a signal in a first frequencyband corresponding to the first network device; and transmitting, by thefirst network device, a signal with a first terminal device on thetime-frequency resource.

A frequency band refers to the part of radio spectrum located betweenspecific frequency boundaries. Generally speaking, the frequency bandrefers to a frequency range between a highest frequency and a lowestfrequency on which a signal is allowed to be transmitted. Here, itrefers to a frequency resource with a certain width in frequency domain,and the restriction in time domain is not necessary. For example, thefrequency band may be a carrier.

A network device may refer to a device that may provide network servicesphysically, or may be a device that may provide network serviceslogically. For example, the network device may be a Transmission andReception Point (TRP).

The first frequency band corresponding to the first network device meansthat the first frequency band is configured for the first network deviceto transmit a signal. The first frequency band may be used by the firstnetwork device to transmit the signal of the first network device to theterminal device, or may be used by the first network device to receive asignal transmitted from the terminal device. It should be understoodthat, the corresponding here may be specified in a protocol, or may benegotiated between network devices, or may be configured by a primarynetwork device to a secondary network device.

The network device further determines the time-frequency resource fortransmitting the signal with the terminal device within the configuredfrequency band, which is beneficial to improving transmissionreliability.

In a possible implementation, the method further includes: receiving, bythe first network device, first indication information; whereindetermining, by the first network device, the time-frequency resourcefor transmitting the signal in the first frequency band corresponding tothe first network device, includes: determining, by the first networkdevice, the time-frequency resource according to the first indicationinformation.

The first indication information is sent based on interference caused bya second frequency band to the first frequency band.

The second network device may acquire a frequency band configured forother network devices, and may use a certain rule to configure resourcesfor the frequency band of other network devices according tointerference of a frequency band configured for the second networkdevice to the frequency band of other network devices, and inform othernetwork devices of a situation of the frequency band configuration bythe second network device for other network devices.

In a possible implementation, the first frequency band is used fortransmitting a downlink signal and the second frequency band is used fortransmitting an uplink signal; or the first frequency band is used fortransmitting an uplink signal and the second frequency band is used fortransmitting a downlink signal.

Transmission directions of the first frequency band and the secondfrequency band are exactly opposite. For example, the first frequencyband may be configured for the first network device to receive a signalfrom the terminal device, and the second frequency band may beconfigured for the first network device or other network devices to senda signal to the terminal device; or, the first frequency band may beconfigured for the first network device to send a signal to the terminaldevice, and the second frequency band may be configured for the firstnetwork device or other network devices to receive a signal sent by theterminal device.

In a possible implementation, the first indication information is usedfor indicating a scheduling mode of each time domain unit within a firstperiod in the first frequency band for the first network device, and/orthe first indication information is used for indicating a schedulingmode of each frequency domain unit in the first frequency band for thefirst network device. Determining, by the first network device, thetime-frequency resource for transmitting the signal in the firstfrequency band corresponding to the first network device, includes: thefirst network device determining the time-frequency resource accordingto at least one of the scheduling mode of each time domain unit or thescheduling mode of each frequency domain unit.

The above period and the number of the time domain units may benegotiated between the network devices in advance or configured by aprimary network device. For example, a period of 10 time slots may bespecified in advance, and the time domain unit may be one time slot, ormay be two time slots, etc.

The first indication information may be a bit map defined broadly. Forexample, x0 may be used for representing that the time domain unit maybe used for transmitting a signal, x1 represents that the time domainunit is prohibited to be used for transmitting a signal, x2 mayrepresent that the time domain unit may be used for transmitting asignal only with a certain restriction, etc.

The number of frequency domain units into which the first frequency bandis divided and a size of the frequency domain unit may be negotiatedbetween the network devices in advance or configured by a primarynetwork device. For example, it can be specified in advance that thefirst frequency band is divided by 15 kHz, that is, the frequency domainunit is 15 kHz, or an integer multiple of 15 kHz.

Similarly, each frequency domain unit in the first frequency band may beindicated by a bit map defined broadly.

In a possible implementation, the scheduling mode includes allowingscheduling, prohibiting scheduling, or scheduling by using an adjustedor restricted level of a coding and modulation scheme.

The scheduling mode may be to limit a certain number of terminal devicesto allow scheduling.

In a possible implementation, the first indication information is usedfor indicating at least two kinds of information of: a starting positionin time domain, a length in time domain, and a ending position in timedomain of the time-frequency resource; and/or the first indicationinformation is used for indicating at least two kinds of information of:a starting position in frequency domain, a bandwidth, and an endingposition in frequency domain of the time-frequency resource.

The first indication information may be used for indicating at least twokinds of information of: a starting position in time domain, a length intime domain, and an ending position in time domain of a restrictedtime-frequency resource in the first frequency band, and/or the firstindication information may be used for indicating at least two kinds ofinformation of: a starting position in frequency domain, a bandwidth,and an ending position in frequency domain of a restrictedtime-frequency resource in the first frequency band, so the firstnetwork device can determine a time-frequency resource allowed to bescheduled according to the restricted time-frequency resource indicatedin the first indication information.

In a possible implementation, the first indication information is usedfor indicating time domain configuration information of an uplink anddownlink frequency band corresponding to a second network device withina second period, the uplink and downlink frequency band includes asecond frequency band causing interference to the first frequency band.Determining, by the first network device, the time-frequency resourceaccording to the first indication information, includes: the firstnetwork device determines the time-frequency resource according to thetime domain configuration information.

In the implementation, the period is similar to that described above,which may be agreed or configured in advance. Generally, a part of thefrequency band configured for the network device is used fortransmitting an uplink signal, and the other part is used fortransmitting a downlink signal, that is, the frequency band configuredfor network device includes an uplink frequency band and a downlinkfrequency band. The uplink frequency band may be the same as thedownlink frequency band, but staggered in the time domain, which is theso-called time-division multiplexing. As long as the first networkdevice obtain time domain configuration information of the frequencyband corresponding to other network devices, that is, an uplink anddownlink configuration condition in one period, the first network devicemay automatically determine a schedulable time domain resource in thefirst frequency band or a time domain resource of which scheduling isrestricted according to certain rules, on the basis of the uplink anddownlink configuration condition.

In a possible implementation, the method further includes: receiving, bythe first network device, terminal configuration information of thefirst terminal device; wherein, determining, by the first networkdevice, the time-frequency resource for transmitting the signal in thefirst frequency band corresponding to the first network device,includes: determining, by the first network device, the time-frequencyresource corresponding to the first terminal device according to theterminal configuration information.

Different terminal devices under the first network device may correspondto different configuration modes in the first frequency band, ordifferent groups of terminal devices may correspond to differentconfiguration modes in the first frequency band. Other network devicesmay send identification of the first terminal device or a group numberto which the first terminal device belongs when sending the firstindication information to the first network device, so that the firstnetwork device may know that the time-frequency resource indicated bythe first indication information may be used for transmitting the signalof the first terminal device. Or, the above corresponding relationshipmay be stored among the network devices, and other network devices onlyneed inform the first network device the identification of the firstterminal device or the group number to which the first terminal devicebelongs.

The time-frequency resource indicated by the first indicationinformation may be applicable to all terminal devices under the firstnetwork device.

In a possible implementation, the first frequency band is a new radio(NR) carrier, and/or the second frequency band is a long term evolution(LTE) carrier or an NR carrier.

In a possible implementation, a cell corresponding to the secondfrequency band is a primary cell.

In a second aspect, there is provided a method for transmitting asignal, and the method includes: sending, by a second network device,first indication information to a first network device according tointerference caused by a second frequency band to a first frequencyband, wherein the first indication information is used for the firstnetwork device to determine a time-frequency resource that is capable ofbeing used for transmitting a signal in the first frequency band.

In a possible implementation, the first frequency band is used fortransmitting a downlink signal and the second frequency band is used fortransmitting an uplink signal; or the first frequency band is used fortransmitting an uplink signal and the second frequency band is used fortransmitting a downlink signal.

In a possible implementation, the first indication information is usedfor indicating a scheduling mode of each time domain unit within a firstperiod in the first frequency band for the first network device, and/orthe first indication information is used for indicating a schedulingmode of each frequency domain unit in the first frequency band for thefirst network device.

In a possible implementation, the scheduling mode includes allowingscheduling, prohibiting scheduling, or scheduling by using an adjustedor restricted level of a coding and modulation scheme.

In a possible implementation, the first indication information is usedfor indicating at least two kinds of information of: a starting positionin time domain, a length in time domain, and an ending position in timedomain of the time-frequency resource; and/or the first indicationinformation is used for indicating at least two kinds of information of:a starting position in frequency domain, a bandwidth, and an endingposition in frequency domain of the time-frequency resource.

In a possible implementation, the first indication information is usedfor indicating time domain configuration information of an uplink anddownlink frequency band corresponding to the second network devicewithin a second period, and the uplink and downlink frequency bandincludes a second frequency band.

In a possible implementation, the first indication information is usedfor indicating a time-frequency resource of a first terminal device,wherein the first terminal device is a terminal device to which thefirst network device provides a network service.

In a possible implementation, the method further comprises: receiving,by the second network device, second indication information sent fromthe first terminal device, wherein the second indication information isused for indicating at least one of a capability of the first terminaldevice to receive a signal through the first frequency band, orinterference information of interference caused by the second frequencyband to the first frequency band; wherein sending, by the second networkdevice, the first indication information to the first network deviceaccording to the interference caused by the second frequency band to thefirst frequency band, includes: determining the time-frequency resourceof the first terminal device according to the interference information;and sending the first indication information to the first networkdevice.

Interference caused by different terminal devices to different frequencybands has different impacts on different terminal devices, orcapabilities of different terminal devices to receive signals may bedifferent. The terminal device may report relevant information which isused for indicating degree of mutual interference caused by simultaneoustransmission of different frequency bands. A reception sensitivityvalue, reception impact level, etc., of the terminal device may bereduced. The reception impact level may be fixed in advance by aprotocol.

The interference information may be an interference type of theinterference caused by the second frequency band to the first frequencyband, and the interference type includes at least one of harmonicinterference or intermodulation interference.

In other words, harmonic interference may correspond to a configurationmode of a time-frequency resource in the first frequency band,intermodulation interference may correspond to a configuration mode of atime-frequency resource in the first frequency band, and harmonicinterference plus intermodulation interference may correspond to anotherconfiguration mode of a time-frequency resource in the first frequencyband.

In a possible implementation, the first frequency band is a new radio(NR) carrier and the second frequency band is a long term evolution(LTE) carrier or a new radio (NR) carrier.

In a possible implementation, a cell corresponding to the secondfrequency band is a primary cell.

In a third aspect, there is provided a method for transmitting a signal,and the method includes: receiving, by a second network device, secondindication information sent from a first terminal device, wherein thesecond indication information is used for indicating at least one of acapability of the first terminal device to receive a signal through afirst frequency band, or interference information of interference causedby a second frequency band to a first frequency band.

In a possible implementation, the method further includes: determining,by the second network device, a time-frequency resource for transmittinga signal of the first terminal device in the first frequency bandaccording to the second indication information.

The first frequency band may be configured for the second network deviceto perform signal transmission with the first terminal device, or may beconfigured for other network devices, such as the first network device,to perform signal transmission with the first terminal device. In otherwords, after the second network device determines the time-frequencyresource of the first terminal device, the second network device maydirectly use the time-frequency resource to perform the signaltransmission with the first terminal device. The indication informationindicating the time-frequency resource may be sent to other networkdevices, so that the other network devices may use the time-frequencyresource to perform signal transmission with the first terminal device.

According to isolation degrees of different terminal devices tointerference, the time-frequency resource for the terminal device isdetermined, by which performance of the terminal device can be fullyutilized, thus it is beneficial to improving the transmissionreliability.

In a possible implementation, the second frequency band is used fortransmitting an uplink signal.

In a possible implementation, the interference information includes atleast one of degree of impact on the first terminal device by theinterference caused by the second frequency band to the first frequencyband, or an interference type of the interference caused by the secondfrequency band to the first frequency band, wherein the interferencetype includes at least one of harmonic interference or intermodulationinterference.

In a possible implementation, the second indication information isspecifically used for indicating degree of impact on the first terminaldevice by interference caused by the second frequency band to eachfrequency domain unit in the first frequency band.

In a possible implementation, the second indication information isspecifically used for indicating degree of impact on the first terminaldevice by the interference caused by the second frequency band to a partof frequency domain resources in the first frequency band.

In a possible implementation, the capability of the first terminaldevice to receive the signal through the first frequency band isrepresented by a sensitivity value of the first terminal device toreceive the signal through the first frequency band, and/or the degreeof the impact is represented by an impact level corresponding to thedegree of the impact.

In a possible implementation, determining, by the second network device,the time-frequency resource for transmitting the signal of the firstterminal device in the first frequency band according to the secondindication information, includes: determining, by the second networkdevice, that the interference caused by the second frequency band to thefirst frequency band has no impact on the first terminal deviceaccording to the second indication information; and determining, by thesecond network device, all time-frequency resources in the firstfrequency band as time-frequency resources of the first terminal device.

In a possible implementation, the first frequency band is an NR carrierand the second frequency band is an LTE carrier or an NR carrier.

In a possible implementation, a cell corresponding to the secondfrequency band is a primary cell.

In a fourth aspect, there is provided a method for transmitting asignal, and the method comprises: sending, by a first terminal device,second indication information to a second network device, wherein thesecond indication information is used for indicating at least one of acapability of the first terminal device to receive a signal through afirst frequency band or interference information of interference causedby a second frequency band to a first frequency band.

In a possible implementation, the second frequency band is used fortransmitting an uplink signal.

In a possible implementation, the interference information includes atleast one of degree of impact on the first terminal device by theinterference caused by the second frequency band to the first frequencyband, or an interference type of the interference caused by the secondfrequency band to the first frequency band, wherein the interferencetype includes at least one of harmonic interference or intermodulationinterference.

In a possible implementation, the second indication information isspecifically used for indicating degree of impact on the first terminaldevice by interference caused by the second frequency band to eachfrequency domain unit in the first frequency band.

In a possible implementation, the second indication information isspecifically used for indicating degree of impact on the first terminaldevice by the interference caused by the second frequency band to partof frequency domain resources in the first frequency band.

In a possible implementation, the capability of the first terminaldevice to receive the signal through the first frequency band isrepresented by a sensitivity value of the first terminal device toreceive the signal through the first frequency band, and/or the degreeof the impact is represented by an impact level corresponding to thedegree of the impact.

In a possible implementation, the first frequency band is an NR carrierand the second frequency band is an LTE carrier or an NR carrier.

In a possible implementation, a cell corresponding to the secondfrequency band is a primary cell.

In a possible implementation, sending, by the first terminal device,second indication information to the second network device, includes:sending, by the first terminal device, a first message to the secondnetwork device, wherein the first message carries an access capabilityof the first terminal device and the second indication information; orsending, by the first terminal device, the second indication informationto the second network device when enabling carrier aggregation; orsending, by the first terminal device, the second indication informationto the second network device when determining that a plurality offrequency bands configured for the first terminal device are capable ofgenerating interference.

In a fifth aspect, there is provided a network device used forperforming the method in the above first aspect or any possibleimplementation of the first aspect. The network device includes unitsfor performing the method in the above first aspect or any possibleimplementation of the first aspect.

In a sixth aspect, there is provided a network device used forperforming the method in the above second aspect or any possibleimplementation mode of the second aspect. The network device includesunits used for performing the method in the above second aspect or anypossible implementation mode of the second aspect.

In a seventh aspect, there is provided a network device used forperforming the method in the above third aspect or any possibleimplementation of the third aspect. The network device includes unitsused for performing the method in the third aspect or any possibleimplementation of the above third aspect.

In an eighth aspect, there is provided a terminal device used forperforming the method in the above fourth aspect or any possibleimplementation of the fourth aspect. The terminal device includes unitsfor performing the method of above fourth aspect or in any possibleimplementation of the above fourth aspect.

In a ninth aspect, there is provided a network device. The networkdevice includes a memory, a processor, an input interface, and an outputinterface. The memory, the processor, the input interface and the outputinterface are connected through a bus system. The memory is used forstoring instructions, and the processor is used for executing theinstructions stored in the memory to perform the method in the abovefirst aspect or any possible implementation of the first aspect.

In a tenth aspect, there is provided a network device. The networkdevice includes a memory, a processor, an input interface, and an outputinterface. The memory, the processor, the input interface and the outputinterface are connected through a bus system. The memory is used forstoring instructions, and the processor is used for executing theinstructions stored in the memory to perform the method in the abovesecond aspect or any possible implementation of the second aspect.

In a eleventh aspect, there is provided a network device. The networkdevice includes a memory, a processor, an input interface, and an outputinterface. The memory, the processor, the input interface and the outputinterface are connected through a bus system. The memory is used forstoring instructions, and the processor is used for executing theinstructions stored in the memory to perform the method in the abovethird aspect or any possible implementation of the third aspect.

In a twelfth aspect, there is provided a terminal device. The terminaldevice includes a memory, a processor, an input interface, and an outputinterface. The memory, the processor, the input interface and the outputinterface are connected through a bus system. The memory is used forstoring instructions, and the processor is used for executing theinstructions stored in the memory to perform the method in the abovefourth aspect or any possible implementation of the fourth aspect.

In a thirteenth aspect, there is provided a computer storage medium usedfor storing computer software instructions for executing the method inthe above first aspect or any possible implementation of the firstaspect, or the method in the above second aspect or any possibleimplementation of the second aspect, or the method in the above thirdaspect or any possible implementation of the third aspect, or the methodin the above fourth aspect or any possible implementation of the fourthaspect, and the computer software instructions include programs designedfor executing the above aspects.

In a fourteenth aspect, there is provided a computer program product.The computer program product includes instructions, and when theinstructions are run on a computer, the computer is caused to performthe method of the above first aspect or any one of optionalimplementations of the first aspect, or the method of the above secondaspect or any one of optional implementations of the second aspect, orthe method of the above third aspect or any one of optionalimplementations of the third aspect, or the method of the above fourthaspect or any one of optional implementations of the fourth aspect.

These aspects and other aspects of the present disclosure will be moresimply understood in following description of implementations.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a specific application scenario according to an implementationof the present disclosure.

FIG. 2 is a schematic flowchart of a method for transmitting a signalaccording to an implementation of the present disclosure.

FIG. 3 is a schematic flowchart of a method for transmitting a signalaccording to an implementation of the present disclosure.

FIG. 4 is a schematic block diagram of an indication mode according toan implementation of the present disclosure.

FIG. 5 is another schematic block diagram of an indication modeaccording to an implementation of the present disclosure.

FIG. 6 is a schematic flowchart of a method for transmitting a signalaccording to an implementation of the present disclosure.

FIG. 7 is a schematic flowchart of a method for transmitting a signalaccording an implementation of the present disclosure.

FIG. 8 is a schematic flowchart of a method for transmitting a signalaccording an implementation of the present disclosure.

FIG. 9 is a schematic block diagram of a network device according to animplementation of the present disclosure.

FIG. 10 is another schematic block diagram of a network device accordingto an implementation of the present disclosure.

FIG. 11 is yet another schematic block diagram of a network deviceaccording to an implementation of the present disclosure.

FIG. 12 is a schematic block diagram of a terminal device according toan implementation of the present disclosure.

FIG. 13 is yet another schematic block diagram of a network deviceaccording to an implementation of the present disclosure.

FIG. 14 is yet another schematic block diagram of a network deviceaccording to an implementation of the present disclosure.

FIG. 15 is yet another schematic block diagram of a network deviceaccording to an implementation of the present disclosure.

FIG. 16 is another schematic block diagram of a terminal deviceaccording to an implementation of the present disclosure.

DETAILED DESCRIPTION

Technical schemes in implementations of the present disclosure will beclearly and completely described below with reference to theaccompanying drawings in the implementations of the present disclosure.

It should be understood that technical solutions of implementations ofthe present disclosure may be applied to various communication systems,such as, a Global System of Mobile communication (GSM) system, a CodeDivision Multiple Access (CDMA) system, a Wideband Code DivisionMultiple Access (WCDMA) system, a General Packet Radio Service (GPRS)system, a Long Term Evolution (LTE) system, a LTE Frequency DivisionDuplex (FDD) system, an LTE Time Division Duplex (TDD) system, aUniversal Mobile Telecommunication System (UMTS) system, a WorldwideInteroperability for Microwave Access (WiMAX) communication system, aNew Radio (NR) system, or a future 5G system.

The technical solutions of the implementations of the present disclosuremay be applied to various communication systems based on non-orthogonalmultiple access technologies, such as a Sparse Code Multiple Access(SCMA) system, and a Low Density Signature (LDS) system. Of course, theSCMA system and the LDS system may also be referred to as other names inthe communication field. Further, the technical solutions of theimplementations of the present disclosure may be applied tomulti-carrier transmission systems employing non-orthogonal multipleaccess technologies, such as an Orthogonal Frequency DivisionMultiplexing (OFDM) system based on the non-orthogonal multiple accesstechnology, a Filter Bank Multi-Carrier (FBMC) system, a GeneralizedFrequency Division Multiplexing (GFDM) system, and a Filtered OFDM(F-OFDM) system.

The terminal device in the implementations of the present disclosure maybe referred to a user equipment (UE), access terminal, subscriber unit,subscriber station, mobile station, mobile platform, remote station,remote terminal, mobile equipment, user terminal, terminal, wirelesscommunication equipment, user agent or user apparatus. An accessterminal may be a cellular phone, a cordless phone, a session initiationprotocol (SIP) phone, a wireless local loop (WLL) station, a personaldigital assistant (PDA), a handheld device with a wireless communicationfunction, a computing device or other processing device connected to awireless modem, an on-board device, a wearable device, a terminal devicein a future 5G network, or a terminal device in a future evolved PublicLand Mobile Network (PLMN), etc., which is not restricted inimplementations of the present disclosure.

The network device in the implementations of the present disclosure maybe a device for communicating with the terminal device, the networkdevice may be a Base Transceiver Station (BTS) in a GSM system or CDMAsystem, or may be a NodeB (NB) in a WCDMA system, or may be an evolutionNodeB (eNB or eNodeB) in an LTE system, or may be a wireless controllerin a scenario of a Cloud Radio Access Network (CRAN), or the networkdevice may be a relay station, an access point, an on-board device, or awearable device, a network device in the future 5G network or a networkdevice in the future evolved Public Land Mobile Network (PLMN), etc.,which is not restricted in the implementations of the presentdisclosure.

A network in the NR/5G system is different from that in the traditionalLTE system. The 5G system has multiple frequencies (high and lowfrequencies and unlicensed frequency bands) and multiple-layer overlap(such as Macro cell +Micro cell). When multiple connections arerealized, connections from the UEs to the networks come from multiplenetwork nodes under multiple frequencies. As shown in FIG. 1, acommunication system in FIG. 1 may include a terminal device 10 and anetwork device 20, and the network device 20 includes a first TRP 21 anda second TRP 22. The network device 20 is configured to providecommunication services for the terminal device 10 and access to a corenetwork. The terminal device 10 accesses the network by searching for asynchronization signal, or a broadcast signal, etc., transmitted by thenetwork device 20 to communicate with the network. Arrows shown in FIG.1 may represent uplink/downlink transmission through cellular linksbetween the terminal device 10 and the network device 20.

Taking a non-independent work mode as an example, a UE supports both LTEtransmission and NR transmission, i.e., an LTE link and an NR link worksimultaneously. However, due to frequency bands of an LTE carrier and anNR carrier, there may be some harmonic or intermodulation interferencein the LTE transmission and NR transmission which are performedsimultaneously, thereby reducing sensitivity of a receiver.

Those skilled in the art should understand that the harmonicinterference may refer to interference caused when an integer multipleof one frequency band is partly overlapped with another frequency band,and the two frequency bands perform transmission in different directionssimultaneously. The harmonic interference may refer to interferencecaused when a linear combination of two frequency bands is partlyoverlapped with another frequency band, and two frequency bands and theother frequency band perform transmission in different directionssimultaneously.

For example, a frequency band rang of an uplink carrier of the LTE is1710-1785 MHz, and a range of its second harmonic is 3420-3570 MHz,which is partly overlapped with a frequency band range of downlinkcarrier with 3400-3800 MHz of the NR. If the uplink carrier of the LTEand the downlink carrier of the NR perform transmission simultaneously,harmonic interference will exist.

For another example, a UE is configured with an LTE carrier of Band 1and Band 7 simultaneously, and a frequency band range of an NR carrieris 3400-3800 MHz. If an uplink of Band 7 and an uplink of NR performtransmission simultaneously, the generated intermodulation interferenceof 5th order will affect sensitivity of a downlink receiver on the Band1.

Similarly, the above problems also exist in the independent work mode.

Implementation of the present disclosure provides a solution for theabove problems, and the technical solution provided by implementationsof the present disclosure will be described in detail below withreference to the accompanying drawings.

It should be understood that the terms “system” and “network” are oftenused interchangeably in this document. The term “and/or” in thisdocument is merely an association relationship describing associatedobjects, indicating that there may be three relationships, for example,A and/or B may indicate three cases: A alone, A and B, and B alone. Inaddition, the symbol “/” in this document generally indicates thatobjects before and after the symbol “/” have an “or” relationship.

FIG. 2 is a schematic flowchart of a method 100 for transmitting asignal according to an implementation of the present disclosure. Asshown in FIG. 2, the method 100 includes acts S110 and S120.

In S110, a first network device determines a time-frequency resource fortransmitting a signal in a first frequency band corresponding to thefirst network device.

In S120, the first network device performs signal transmission with thefirst terminal device on the time-frequency resource.

The following points need to be explained.

First, a frequency band refers to a part of radio spectrum locatedbetween specific frequency boundaries. Generally speaking, the frequencyband refers to a frequency range between a highest frequency and alowest frequency on which a signal is allowed to be transmitted. Here,it refers to a frequency resource with a certain width in frequencydomain, and may not be restricted in time domain. For example, thefrequency band may be a carrier.

Second, a network device may be a network node, which refers to a deviceconnected to a network with independent address and functions of sendingor receiving data. A Node may be a workstation, a customer, a networkuser or a personal computer, a server, a printer, or other devicesconnected with the network. Every workstation, server, terminal deviceand network device, equipment with its own unique network address areall network nodes. In other words, a network device may refer to adevice that is capable of providing network services physically, or adevice that is capable of providing network services logically. Forexample, the network device may be any of the above network devices, orthe network device may be a TRP.

Third, the first frequency band corresponding to the first networkdevice means that the first frequency band is configured for the firstnetwork device to transmit a signal, the first frequency band may beused by the first network device to transmit a signal of the firstnetwork device to the terminal device, or may be used by the firstnetwork device to receive a signal transmitted from the terminal device.It should be understood that the corresponding here may be acorresponding relationship, or may be specified in a protocol, or may benegotiated between network devices, or may be configured by a primarynetwork device to a secondary network device.

Fourth, the signal transmission with the first terminal device here mayrefer to the first network device sending a signal, i.e., a downlinksignal to the first terminal device, or the first network devicereceiving a signal, i.e., an uplink signal, sent from the first terminaldevice.

Fifth, in the implementation of the present disclosure, on the one hand,the first network device determines the time-frequency resource fortransmitting the signal in the first frequency band corresponding to thefirst network device, which may be determined through negotiationbetween the network devices. For example, a network device may notifyneighboring network devices of the frequency band allocated to it beforetransmitting the signal, then the network device may consider whether afrequency band configured for other network devices causes interferencewhen transmitting signals simultaneously therewith, and if so, thenetwork device may notify other network devices causing interference tothe network device, and negotiate which of the two imposes certainrestrictions on its own frequency band resource. On the other hand, thefirst network device determines the time-frequency resource fortransmitting the signal in the first frequency band corresponding to thefirst network device, or the time-frequency resource for transmittingthe signal in the first frequency band corresponding to the firstnetwork device may be determined by other network devices and indicatedto the first network device. That is, other network devices furtherdivide the first frequency band configured for the first network deviceaccording to a certain rule.

FIG. 3 is a simple flowchart of a method 200 for transmitting a signalaccording to an implementation of the present disclosure. As shown inFIG. 3, the method 200 includes acts S210-S240.

In S210, a second network device determines a time-frequency resource ina first frequency band according to interference of a second frequencyband to the first frequency band.

In S220, the second network device sends first indication information tothe first network device, and informs the first network device thetime-frequency resource determined for the first network device.

In S230, the first network device determines the time-frequency resourcein the first frequency band according to the first indicationinformation sent from the second network device.

In S240, the first network device performs signal transmission with thefirst terminal device through the time-frequency resource determined forthe first network device.

The second network device may determine the time-frequency resource fortransmitting the signal in the first frequency band in consideration ofthe interference caused by the second frequency band to the firstfrequency band. Here, the second frequency band may be configured forthe first network device, or may be configured for other networkdevices, such as the second network device, while the first frequencyband is configured for the first network device. It should be understoodthat the act S210 is an optional act, that is, the second network devicemay make a decision without considering the interference caused by thesecond frequency band to the first frequency band, and may directlynotify the first network device of relevant information of the secondfrequency band causing interference to the first frequency band, forexample, its frequency band range or time domain range, etc. Further,after receiving the first indication information, determining, by thefirst network device, the time-frequency resource in the first frequencyband according to the indication information may include: if the secondnetwork device has made a decision in consideration of the interferenceof the second frequency band to the first frequency band, the firstindication information may indicate the time-frequency resourcedetermined by the second network device, and the first network devicemay directly determine the time-frequency resource according to thefirst indication information. However, if the second network device doesnot make a decision in consideration of the interference of the secondfrequency band to the first frequency band, and the first indicationinformation sent by the second network device may be relevantinformation of the second frequency band, then the first network devicedetermines the time-frequency resource by itself according to therelevant information of the second frequency band indicated by the firstindication information and in combination with a certain rule. Afterdetermining the time-frequency resource, the first network device mayperform the signal transmission with a terminal device under the firstnetwork device through the time-frequency resource. Regardless ofwhether the time-frequency resource is determined by the first networkdevice or the second network device, the interference of the secondfrequency band to the first frequency band is fully considered, thuswhen the second frequency band and the first frequency band performtransmission simultaneously, it is beneficial to reducing theinterference and improving the transmission reliability.

In an implementation of the present disclosure, the first frequency bandis used for transmitting a downlink signal and the second frequency bandis used for transmitting an uplink signal; or the first frequency bandis used for transmitting an uplink signal and the second frequency bandis used for transmitting a downlink signal.

That is, transmission on the first frequency band and transmission onthe second frequency band which are performed simultaneously may be indifferent directions. For example, transmission on a downlink of thefirst frequency band and transmission on an uplink of the secondfrequency band are performed simultaneously, or transmission on anuplink of the first frequency band and transmission on a downlink of thesecond frequency band are performed simultaneously. The transmission onthe first frequency band and the transmission on the second frequencyband which are performed simultaneously may also be in the samedirection. For example, transmission on the uplink of the firstfrequency band and transmission on the uplink of the second frequencyband are performed simultaneously, or transmission on the downlink ofthe first frequency band and transmission on the downlink of the secondfrequency band are performed simultaneously. It should be understoodthat the first frequency band and the second frequency band may beconfigured for the same network device, and the transmission on thefirst frequency band and the transmission on the second frequency bandwhich are performed simultaneously may be signal transmission performedby the same network device and the same terminal device through thefirst frequency band and the second frequency band respectively. Thefirst frequency band and the second frequency band may be configured forthe same network device, and the transmission on the first frequencyband and the transmission on the second frequency band which areperformed simultaneously may be signal transmission performed by thesame network device with different terminal devices through the firstfrequency band and the second frequency band respectively. The firstfrequency band and the second frequency band may be configured fordifferent network devices, and the transmission on the first frequencyband and the transmission on the second frequency band may be signaltransmission performed by different network devices with terminaldevices under the network devices respectively through the firstfrequency band and the second frequency band.

It should also be understood that, if the first frequency band and thesecond frequency band are configured for the same network device, theremay be no explicit interaction information between a cell to which thefirst frequency band belongs and a cell to which the second frequencyband belongs, interaction is performed through logical network elementsto which the cells belong respectively.

In an implementation of the present disclosure, the first indicationinformation is used for indicating a scheduling mode of each time domainunit within a first period in the first frequency band for the firstnetwork device, and/or the first indication information is used forindicating a scheduling mode of each frequency domain unit in the firstfrequency band for the first network device. Determining, by the firstnetwork device, the time-frequency resource according to the firstindication information, includes: the first network device determinesthe time-frequency resource according to at least one of the schedulingmode of each time domain unit or the scheduling mode of each frequencydomain unit.

Further, the scheduling mode may be a scheduling mode which includesallowing scheduling, prohibiting scheduling, or scheduling by using anadjusted or restricted level of a coding and modulation scheme, or thescheduling mode may be a scheduling mode which restricts the quantity ofterminal devices scheduled on a specific time domain unit or a specificfrequency domain unit, etc.

It should be noted that the above period and the quantity of the timedomain units may be negotiated between the network devices in advance orconfigured by a primary network device. For example, a period of 10 timeslots may be specified in advance, and the time domain unit may be onetime slot, or may be an integer multiple of the time slot, etc. Eachtime domain unit may be equal or unequal. For example, the first timedomain unit may be one time slot, and the second time domain unit may betwo time slots. The quantity of frequency domain units divided on thefirst frequency band and a size of the frequency domain unit may benegotiated between the network devices in advance or configured by aprimary network device. For example, it may be specified in advance thatthe first frequency band is divided by 15 kHz, and the frequency domainunit is 15 kHz, or an integer multiple of 15 kHz. Each frequency domainunit may or may not be equal, for example, the first frequency domainunit may be 15 kHz and the second frequency domain unit may be 30 kHz.

The first indication information may be a bit map defined broadly. Forexample, x0 may be used for representing that the time domain unit maybe used for transmitting a signal, x1 represents that the time domainunit is prohibited to be used for transmitting a signal, x2 . . . xn mayrepresent that the time domain unit may be used for transmitting asignal only with a certain restriction, etc. Where x2 . . . xn representdifferent restrictions, for example, adjusting or restricting a level ofa Modulation and Coding Scheme (MCS).

Similarly, each frequency domain unit in the first frequency band may beindicated by a bit map defined broadly. For example, x0 may representthat the frequency domain unit may be used for transmitting a signal, x1represents that the frequency domain unit is prohibited to be used fortransmit a signal, x2 . . . xn represent that the frequency domain unitmay be used for transmitting a signal only with a certain restriction,etc. Where x2 . . . ,xn represent different restrictions, for example,adjusting or restricting an MCS level.

Example 1: as shown in FIG. 4, a period consists of 10 time slots, whichare indicated by a generalized bitmap of 10 bits, each positionindicates information x, x is a certain value in an optional set {v_1, .. . , v k}, different values identify different meanings. For example,v_1 represents no scheduling, v_2 represents restricting or adjusting anMCS level, and v_3 represents normal scheduling.

Example 2: As shown in FIG. 5, a frequency domain resource of a certaincarrier is divided into N groups according to a certain rule, which areindicated by a bit map of N bits, each position indicates information x,x is a certain value in an optional set {v_1, . . . , v k}, anddifferent values identify different meanings. For example, v 1represents no scheduling, v_2 represents restricting or adjusting anMCS, and v_3 represents normal scheduling.

The MCS is used for numbering different modulation and coding modes, sothat different communication strategies are called in the system, andvalues of the MCS correspond to communication environments withdifferent rates. A range of values of MCS is usually [0, 31], but fornewly transmitted data, values of MCS of [0, 28] may only be used. Thehigher the MCS, the better the dependent channel condition needs to be.Different values of the MCS correspond to various modulation orders andcoding rates, and the MCS may be adjusted through a Channel QualityIndicator (CQI), a channel Signal to Noise Ratio (SNR) and the like, fedback by a user. If the second network device determines that impact ofinterference caused by the second frequency on a certain time domainunit or a certain frequency domain unit in the first frequency band isrelatively small, the second network device may indicate the firstnetwork device to adjust or restrict an MCS level to improve thetransmission reliability.

Similarly, when the second network device determines that impact of theinterference caused by the second frequency on a certain time domainunit or a certain frequency domain unit in the first frequency band isrelatively small, the second network device may indicate the firstnetwork device to restrict the quantity of terminal devices scheduled onthe time domain unit or the frequency domain to improve the transmissionreliability.

As mentioned above, the interference caused by the second frequency bandto the first frequency band may be at least one of harmonic interferenceor intermodulation interference. If there is one second frequency band,the interference caused by the second frequency band to the firstfrequency band may be harmonic interference, while if there are multiplesecond frequency bands, the interference caused by the second frequencyband to the first frequency band may be intermodulation interference.

The interference may be reduced and the transmission reliability may beimproved by staggering resources in the first frequency band with theresources in the second frequency band in the time domain or in thefrequency domain.

In an implementation of the present disclosure, the first indicationinformation is used for indicating at least two kinds of information of:a starting position in time domain, a length in time domain, and anending position in time domain of the time-frequency resource; and/orthe first indication information is used for indicating at least twokinds of information of: a starting position in frequency domain, abandwidth, and an ending position in frequency domain of thetime-frequency resource.

The first indication information may be used for indicating at least twokinds of information of: a starting position in time domain, a length intime domain, and an ending position in time domain of a restrictedtime-frequency resource in the first frequency band, and/or the firstindication information may be used for indicating at least two kinds ofinformation of: a starting position in frequency domain , a bandwidth,and an ending position in frequency domain of a restrictedtime-frequency resource in the first frequency band, thus the firstnetwork device may determine a time-frequency resource allowed to bescheduled according to the restricted time-frequency resource indicatedin the first indication information.

Taking FIG. 4 as an example, the second network device may directlyinform the first network device through the first indication informationthat the last 8 slots in a period may be used for scheduling, thus thefirst network device may directly performs signal transmission on thelast eight slots. Or, the second network device may directly inform thefirst network device through the first indication information that thefirst two time slots within a period may not be used for scheduling,then the first network device may calculate that resources that may beused for scheduling are the last eight time slots if a period of 10 timeslots is agreed in advance. Taking FIG. 5 as an example, the secondnetwork device may directly inform the first network device through thefirst indication information that the last three frequency domain unitsof the first frequency band may be used for scheduling, thus the firstnetwork device may directly perform signal transmission on the lastthree frequency domain units of the first frequency band. Or, the secondnetwork device may directly inform the first network device through thefirst indication information that the first two frequency domain unitsof the first network device may not be used for scheduling. If it isagreed in advance that the first frequency band is divided into fivefrequency domain units, then the first network device may calculate thatresources that may be scheduled are resources on the last threefrequency domain units of the first frequency band that may be used forscheduling.

In an implementation of the present disclosure, the first indicationinformation is used for indicating time domain configuration informationof an uplink and downlink frequency band corresponding to a secondnetwork device within a second period, the uplink and downlink frequencyband includes the second frequency band causing interference to thefirst frequency band. Determining, by the first network device, thetime-frequency resource according to the first indication information,includes: the first network device determines the time-frequencyresource according to the time domain configuration information.

In the implementation, the period is similar to that described above,which may be agreed or configured in advance. Generally, a part of thefrequency band configured for the network device is used fortransmitting an uplink signal, and the other part is used fortransmitting a downlink signal, that is, the frequency band configuredfor network device includes an uplink frequency band and a downlinkfrequency band. The uplink frequency band may be the same as thedownlink frequency band, but staggered in the time domain, and this isso-called time-division multiplexing. As long as the first networkdevice obtain time domain configuration information of a frequency bandcorresponding to other network devices, that is, an uplink and downlinkconfiguration condition within a period, the first network device mayautomatically determine a time domain resource that may be scheduling inthe first frequency band or a time domain resource of which schedulingis restricted according to a certain rule, on the basis of the uplinkand downlink configuration condition.

In an implementation of the present disclosure, determining, by thefirst network device, the time-frequency resource according to the timedomain configuration information, includes: the first network devicedetermines a resource of the first frequency band within the secondperiod except time-domain units overlapping with the second frequencyband within the second period as the time-frequency resource.

For example, a period includes 5 symbols, an uplink and downlinkfrequency band of the second network device is configured to be up, up,down, down and down from the first to the fifth symbols respectively, anuplink and downlink frequency band of the first network device isconfigured to be up, up, down, down and up. After obtaining time domainconfiguration information of the uplink and downlink frequency band ofthe second network device, the first network device may directly performthe uplink transmission on the first two symbols and does not performuplink transmission on the fifth symbol.

As mentioned above, the first frequency band and the second frequencyband may be carriers. The first frequency band may be an NR carrier,and/or the second frequency band may be an LTE carrier or an NR carrier.Both first frequency band and the second frequency band may be LTEcarriers, and implementations of the present disclosure are notrestricted thereto.

In addition, in an implementation of the present disclosure, the secondnetwork device may be a primary network device in a multi-connectivityscenario or a separate logical device, and the first network device maybe a secondary network device in the multi-connectivity scenario. Or, inan implementation of the present disclosure, the second frequency bandmay be a primary carrier in carrier aggregation, and the first frequencyband may be a secondary carrier in the carrier aggregation.

In an implementation of the present disclosure, the method furtherincludes: the first network device receives terminal configurationinformation of the first terminal device. Determining, by the firstnetwork device, the time-frequency resource for transmitting the signalin the first frequency band corresponding to the first network device,includes: the first network device determines the time-frequencyresource corresponding to the first terminal device according to theterminal configuration information.

Different terminal devices under the first network device may correspondto different configuration modes in the first frequency band, ordifferent groups of terminal devices may correspond to differentconfiguration modes in the first frequency band. The second networkdevice may send identification of the first terminal device or a groupnumber to which the first terminal device belongs to the first networkdevice when sending the first indication information to the firstnetwork device, so that the first network device may know that thetime-frequency resource indicated by the first indication informationmay be used for transmitting the signal of the first terminal device.Or, the above corresponding relationship may be stored between thenetwork devices, and other network devices only need inform the firstnetwork device of the identification of the first terminal device or thegroup number to which the first terminal device belongs.

In other words, the time-frequency resource determined by the firstnetwork device may be applicable to all terminal devices under the firstnetwork device, may be only applicable to a certain terminal deviceunder the first network device, or may be applicable to a certain groupof terminal devices under the first network device. It should beunderstood that grouping of terminal devices under the first networkdevice may be performed by the second network device, and thecorresponding relationship may also be determined by the second networkdevice.

The method further includes: the second network device receives secondindication information sent from the first terminal device, wherein thesecond indication information is used for indicating at least one of acapability of the first terminal device to receive a signal through thefirst frequency band, or interference information of interference causedby the second frequency band to the first frequency band. Sending, bythe second network device, the first indication information to the firstnetwork device according to the interference caused by the secondfrequency band to the first frequency band, includes: determining thetime-frequency resource of the first terminal device according to theinterference information; and sending the first indication informationto the first network device.

Interference caused by different terminal devices to different frequencybands has different degree of impacts on different terminal devices, orcapabilities of different terminal devices to receive signals may bedifferent. The terminal device may report relevant information which isused for indicating degree of mutual interference caused by simultaneoustransmission of different frequency bands. A reception sensitivityvalue, reception impact level, etc., of the terminal device may bereduced. The reception impact level may be fixed in a protocol inadvance.

In other words, the second network device may obtain the aboveinformation of multiple terminal devices under the first network devicein advance, such as at least one of a capability to receive a signalthrough the first frequency band or interference information ofinterference caused by the second frequency band to the first frequencyband, and perform different configuration on resources of the firstfrequency band according to information reported by each terminaldevice, and may store configuration modes corresponding to differentterminals. The second network device may send a correspondingrelationship to the first network device, so that, when receivingidentification of a certain terminal device, the first network devicemay know a time-frequency resource configured in the first frequencyband corresponding to the terminal device by looking up a table.

It should be understood that the above first terminal device is acertain terminal device under the first network device, or the firstterminal device may be a certain terminal device under the secondnetwork device. In other words, the second network device may determinea configuration mode of a frequency band corresponding to a certainterminal device scheduled by itself according to relevant information ofthe terminal device, and may further perform signal transmission withthe terminal device according to the configuration condition.

According to isolation degree of different terminal devices tointerference, the time-frequency resource for the terminal device isdetermined, by which performance of the terminal device may be fullyutilized, thus it is beneficial to improving the transmissionreliability.

The interference information includes at least one of degree of impacton the first terminal device by the interference caused by the secondfrequency band to the first frequency band, or an interference type ofthe interference caused by the second frequency band to the firstfrequency band, wherein the interference type includes at least one ofharmonic interference or intermodulation interference. The capability ofthe first terminal device to receive the signal through the firstfrequency band is represented by a sensitivity value of the firstterminal device to receive the signal through the first frequency band,and/or the degree of the impact is represented by an impact levelcorresponding to the degree of the impact.

Further, the first terminal device may indicate the degree of the impactthrough the above bit map defined broadly. The second indicationinformation may be used for indicating degree of impact on the firstterminal device by interference caused by the second frequency band toeach frequency domain unit in the first frequency band.

The second indication information may be used for indicating degree ofimpact on the first terminal device by interference caused by the secondfrequency band to a part of frequency resources in the first frequencyband. For example, degree of impact by a range of a certain frequencydomain resource in the first frequency band may be directly indicated tothe first network device, and the range of the frequency domain resourcemay adopt the above direct indication mode, such as at least two kindsof information of: a starting position in frequency domain, a bandwidthand an ending position in frequency domain.

Characterization modes of the degree of the impact in theimplementations of the present disclosure will be specified in detailthrough two examples.

Example 3: a certain frequency band is divided into 5 groups, the UEwill report for different groups [No Impact, No Impact, No Impact,Impact Level I, Impact Level III].

Example 4: a certain frequency band is divided into 5 groups, then theUE will report [Group 4 Impact Level I] [Group 5 Impact Level III], andgroups of no impact may not need to be reported.

Or, the second network device may make harmonic interferencecorresponding to a configuration mode of a time-frequency resource inthe first frequency band, intermodulation interference may be made tocorrespond to another configuration mode of a time-frequency resource inthe first frequency band, and harmonic interference plus intermodulationinterference may correspond to another configuration mode of atime-frequency resource in the first frequency band. After receiving aninterference type reported by the first terminal device, the secondnetwork device may obtain a corresponding configuration mode by lookingup a table, and then notify the first network device of theconfiguration mode.

It should be understood that the above characterization modes are onlyschematic illustration, and the implementations of the presentdisclosure are not restricted thereto.

In an implementation of the present disclosure, sending, by the firstterminal device, second indication information to the second networkdevice, includes: the first terminal device sends a first message to thesecond network device, wherein the first message carries an accesscapability of the first terminal device and the second indicationinformation; or the first terminal device sends the second indicationinformation to the second network device when enabling carrieraggregation; or the first terminal device sends the second indicationinformation to the second network device when determining that multiplefrequency bands configured for the first terminal device are capable ofgenerating interference.

That is, the first terminal device may report the above information tothe second network device while reporting the access capability of theterminal, or the first terminal device may report the above informationto the second network device under the scenario that multi-connectivityor carrier aggregation is configured, or the first terminal device maynot report when multi-connectivity or carrier aggregation is configured,and report the above information to the second network device under thecondition that harmonic interference and/or intermodulation interferencemay occur when multiple carriers perform transmission simultaneously.

In the following, the technical solutions of the present disclosure willbe explained by two detailed implementations.

Example 5: If only following dual-connectivity of LTE and NR issupported in a current network: the terminal supports one carrier of theLTE and one carrier of the NR simultaneously. An uplink of the LTE worksat 1710-1730 MHz (FDD mode) and the carrier of the NR works at 3400-3800MHz (TDD mode), harmonic interference of 2nd-order suffered by adownlink of the carrier of the NR is mainly concentrated in 3420-3460and some adjacent frequency bands (for example, 3460-3470 are alsoaffected). If the NR is in a non-standalone working mode, an LTE cellwill notify an NR cell of following information (following options orcombinations):

NR is normally scheduled at 3470-3800 MHz,

NR is restricted to be scheduled at 3420-3470 MHz,

NR is restricted to be scheduled at 3420-3460 MHz and an MCS is adjustedor restricted at 3460-3470.

3400-3800 MHz may be divided into 10 groups in advance, and the LTE cellnotifies the NR cell of 001111111, i.e., the NR cell is restricted to bescheduled at 3400-3480 MHz.

Example 6: If the terminal supports one carrier of LTE and one carrierof NR simultaneously, an uplink of the LTE works at 1710-1730 MHz (FDDmode) and the carrier of the NR carrier works at 3400-3800 MHz (TDDmode), a range of second harmonic interference of 2nd-order suffered bya downlink of the carrier of the NR is mainly concentrated in 3420-3460and some adjacent frequency bands (for example, 3460-3470 are alsoaffected).

Assuming that some optimization designs have made on a certain terminalto obtain better isolation, which has little impact on downlinkreception of the NR within 3420-3470, and little impact on the receiver.Then the terminal reports information to the network to indicate thatimpact of harmonic interference is good and frequency domain schedulingis not restricted.

Assuming that some optimization designs have made on a certain terminalto obtain certain isolation, which has little impact on downlinkreception of the NR within 3420-3470, but still has impact on thereceiver. Then the terminal reports information of “interference impactlevel 1” to the network, which is used for indicating degree of impactof interference (assuming that there are 1, . . . , k levels in total,level 1 is the smallest level and level k is the largest level).

After the network receives the report from the UE, when scheduling theUE, the network may reasonably perform scheduling and resourceallocation according to an interference and suppression capability oftransmission at different frequency points of the UE.

It should be understood that in various implementations of the presentdisclosure, sequence numbers of the various processes do not imply anorder of execution of the various processes, which should be determinedby their functions and internal logics, and should not constitute anylimitation on implementation processes of the implementations of thepresent disclosure.

FIG. 6 is a schematic flowchart of a method 300 for transmitting asignal according to an implementation of the present disclosure. Asshown in FIG. 6, the method 300 includes the act S310.

In S310: a second network device sends first indication information to afirst network device according to interference caused by a secondfrequency band to a first frequency band, wherein the first indicationinformation is used for the first network device to determine atime-frequency resource that is capable of being used for transmitting asignal in the first frequency band.

Therefore, the method for transmitting the signal in the implementationof the present disclosure is beneficial to reducing interference oftransmission simultaneously performed between frequency bands, therebyimproving the transmission reliability.

In an implementation of the present disclosure, the first frequency bandis used for transmitting a downlink signal and the second frequency bandis used for transmitting an uplink signal; or the first frequency bandis used for transmitting an uplink signal and the second frequency bandis used for transmitting a downlink signal.

In an implementation of the present disclosure, the first indicationinformation is used for indicating a scheduling mode of each time domainunit within a first period in the first frequency band for the firstnetwork device, and/or the first indication information is used forindicating a scheduling mode of each frequency domain unit in the firstfrequency band for the first network device.

In an implementation of the present disclosure, the scheduling modeincludes allowing scheduling, prohibiting scheduling, or scheduling byusing an adjusted or restricted level of a coding and modulation scheme.

In an implementation of the present disclosure, the first indicationinformation is used for indicating at least two kinds of information of:a starting position in time domain, a length in time domain, and anending position in time domain of the time-frequency resource; and/orthe first indication information is used for indicating at least twokinds of information of: a starting position in frequency domain, abandwidth, and an ending position in frequency domain of thetime-frequency resource.

In an implementation of the present disclosure, the first indicationinformation is used for indicating time domain configuration informationof an uplink and downlink frequency band corresponding to the secondnetwork device within a second period, and the uplink and downlinkfrequency band includes the second frequency band.

In an implementation of the present disclosure, the first indicationinformation is used for indicating the time-frequency resource of afirst terminal device, and the first terminal device is a terminaldevice to which the first network device provides a network service.

In an implementation of the present disclosure, the method furtherincludes: the second network device receives second indicationinformation sent from the first terminal device, wherein the secondindication information is used for indicating at least one of acapability of the first terminal device to receive a signal through thefirst frequency band, or interference information of interference causedby the second frequency band to the first frequency band. Sending, bythe second network device, the first indication information to the firstnetwork device according to the interference caused by the secondfrequency band to the first frequency band, includes: determining thetime-frequency resource of the first terminal device according to theinterference information; and sending the first indication informationto the first network device.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and the second frequency band is an LTE carrier or anNR carrier.

In an implementation of the present disclosure, a cell corresponding tothe second frequency band is a primary cell.

It should be understood that the interaction and related characteristicsand functions between the second network device, the first networkdevice and the first terminal device described by the second networkdevice correspond to the related characteristics and functions of thefirst network device. Moreover, the related contents have been describedin detail in the above methods 100 and 200, and will not be repeatedhere for the sake of brevity.

It should be understood that in various implementations of the presentdisclosure, values of sequence numbers in the aforementioned processesdo not indicate an order of execution, and the order of execution ofvarious processes should be determined by their functions and internallogics, and should not constitute any restriction on implementationprocesses of implementations of the present disclosure.

FIG. 7 is a schematic flowchart of a method 400 for transmitting asignal according to an implementation of the present disclosure. Asshown in FIG. 7, the method 400 includes act S410.

In S410: a second network device receives second indication informationsent from a first terminal device, and the second indication informationis used for indicating a capability of the first terminal device toreceive a signal through a first frequency band, and/or interferenceinformation of interference caused by s second frequency band to thefirst frequency band.

In an implementation of the present disclosure, the method 400 furtherincludes S420.

In S420, the second network device determines a time-frequency resourcefor transmitting a signal of the first terminal device in the firstfrequency band according to the second indication information.

The first frequency band may be configured for the second network deviceto perform signal transmission with the first terminal device, or may beconfigured for other network devices, such as the first network device,to perform signal transmission with the first terminal device. In otherwords, after the second network device determines the time-frequencyresource of the first terminal device, the second network device maydirectly use the time-frequency resource to perform the signaltransmission with the first terminal device. The indication informationindicating the time-frequency resource may be sent to other networkdevices, so that the other network devices may use the time-frequencyresource to perform signal transmission with the first terminal device.

It should be understood that when receiving the above informationreported by the first terminal device, the second network device mayperform resource configuration on the terminal device with reference tothe above information, or the second network device may perform resourceconfiguration on the terminal device according to its own rules withoutreference to the above information, and the implementations of thepresent disclosure are not restricted to this.

Therefore, in the method for transmitting the signal according to theimplementation of the present disclosure, the time-frequency resource isdetermined for the terminal device according to isolation degrees ofinterference for different terminal devices, which can fully utilize theperformance of the terminal device, therefore, it is beneficial toimproving the transmission reliability.

In an implementation of the present disclosure, the second frequencyband is used for transmitting an uplink signal.

In an implementation of the present disclosure, the interferenceinformation includes at least one of degree of impact on the firstterminal device by the interference caused by the second frequency bandto the first frequency band, or an interference type of the interferencecaused by the second frequency band to the first frequency band, whereinthe interference type includes at least one of harmonic interference orintermodulation interference.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to each frequency domain unit in the first frequency band.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to a part of frequency domain resources in the first frequencyband.

In an implementation of the present disclosure, the capability of thefirst terminal device to receive the signal through the first frequencyband is represented by a sensitivity value of the first terminal deviceto receive the signal through the first frequency band, and/or thedegree of the impact is represented by an impact level corresponding tothe degree of the impact.

In an implementation of the present disclosure, determining, by thesecond network device, the time-frequency resource for transmitting thesignal of the first terminal device in the first frequency bandaccording to the second indication information, includes: the secondnetwork device determines that the interference caused by the secondfrequency band to the first frequency band has no impact on the firstterminal device according to the second indication information; and thesecond network device determines all time-frequency resources in thefirst frequency band as time-frequency resources of the first terminaldevice.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and the second frequency band is an LTE carrier or anNR carrier.

In an implementation of the present disclosure, a cell corresponding tothe second frequency band is a primary cell.

It should be understood that the interaction and related characteristicsand functions between the second network device, the first networkdevice and the first terminal device described by the second networkdevice correspond to the related characteristics and functions of thefirst network device. Moreover, the related contents have been describedin detail in the above methods 100 and 200, and will not be repeatedhere for the sake of brevity.

It should be understood that in various implementations of the presentdisclosure, values of sequence numbers in the aforementioned processesdo not indicate an order of execution, and the order of execution ofvarious processes should be determined by their functions and internallogics, and should not constitute any limitation on implementationprocesses of implementations of the present disclosure.

FIG. 8 is a schematic flowchart of a method 500 for transmitting asignal according to an implementation of the present disclosure. Asshown in FIG. 8, the method 500 includes S510.

In S510, a first terminal device sends second indication information toa second network device, wherein the second indication information isused for indicating a capability of the first terminal device to receivea signal through a first frequency band and/or interference informationof a second frequency band to a first frequency band.

Therefore, in the method for transmitting the signal according to theimplementation of the present disclosure, the terminal device reportsthe isolation degree for interference to the network device, so that thenetwork device is capable of determining the time-frequency resource forthe terminal device, which can make full use of the performance of theterminal device, and is beneficial to improving the transmissionreliability.

In an implementation of the present disclosure, the second frequencyband is used for transmitting an uplink signal.

In an implementation of the present disclosure, the interferenceinformation includes at least one of degree of impact on the firstterminal device by the interference caused by the second frequency bandto the first frequency band, or an interference type of the interferencecaused by the second frequency band to the first frequency band, whereinthe interference type includes harmonic interference and/orintermodulation interference.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to each frequency domain unit in the first frequency band.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to a part of frequency domain resources in the first frequencyband.

In an implementation of the present disclosure, the capability of thefirst terminal device to receive the signal through the first frequencyband is represented by a sensitivity value of the first terminal deviceto receive the signal through the first frequency band, and/or thedegree of the impact is represented by an impact level corresponding tothe degree of the impact.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and the second frequency band is an LTE carrier or anNR carrier.

In an implementation of the present disclosure, a cell corresponding tothe second frequency band is a primary cell.

In an implementation of the present disclosure, sending, by the firstterminal device, the second indication information to the second networkdevice, includes: the first terminal device sends a first message to thesecond network device, wherein the first message carries an accesscapability of the first terminal device and the second indicationinformation; or the first terminal device sends the second indicationinformation to the second network device when carrier aggregation isenabled; or the first terminal device sends the second indicationinformation to the second network device when determining that multiplefrequency bands configured for the first terminal device are capable ofgenerating interference.

It should be understood that the interaction and relatedcharacteristics, functions, etc. between the first terminal device, thesecond network device and the first network device described by thefirst terminal device correspond to the related characteristics andfunctions of the first network device. Moreover, the related contentshave been described in detail in the above methods 100 and 200, and willnot be repeated here for the sake of brevity.

It should be understood that in various implementations of the presentdisclosure, values of sequence numbers in the aforementioned processesdo not indicate an order of execution, and the order of execution ofvarious processes should be determined by their functions and internallogics, and should not constitute any limitation on implementationprocesses of implementations of the present disclosure.

The method for transmitting the signal according to the implementationsof the present disclosure have been described in detail above, anddevices for transmitting a signal according to implementations of thepresent disclosure will be described below with reference to FIGS. 9 to16. The technical features described in the method implementations areapplicable to following device implementations.

FIG.9 is a block diagram of a network device 600 according to animplementation of the present disclosure. The network device 600 is afirst network device, as shown in FIG. 9, the network device 600includes a determination unit 610 and a transmission unit 620.

The determination unit 610 is used for determining a time-frequencyresource for transmitting a signal in a first frequency bandcorresponding to the first network device.

The transmission unit 620 is used for perform signal transmission withthe first terminal device on the time-frequency resource.

Therefore, the network device provided in an implementation of thepresent disclosure is beneficial to reducing interference oftransmission simultaneously performed between frequency bands, therebyimproving the transmission reliability.

In an implementation of the present disclosure, the network devicefurther includes a first receiving unit used for receiving firstindication information. The determination unit is specifically used fordetermining the time-frequency resource according to the firstindication information.

In an implementation of the present disclosure, the first indicationinformation is sent based on interference caused by the second frequencyband to the first frequency band.

In an implementation of the present disclosure, the first frequency bandis used for transmitting a downlink signal and the second frequency bandis used for transmitting an uplink signal; or the first frequency bandis used for transmitting an uplink signal and the second frequency bandis used for transmitting a downlink signal.

In an implementation of the present disclosure, the first indicationinformation is used for indicating a scheduling mode of each time domainunit within a first period in the first frequency band for the firstnetwork device, and/or the first indication information is used forindicating a scheduling mode of each frequency domain unit in the firstfrequency band for the first network device. The determination unit 610is specifically used for determining the time-frequency resourceaccording to at least one of the scheduling mode of each time domainunit or the scheduling mode of each frequency domain unit.

In an implementation of the present disclosure, the scheduling modeincludes allowing scheduling, prohibiting scheduling, or scheduling byusing an adjusted or restricted level of a coding and modulation scheme.

In an implementation of the present disclosure, the first indicationinformation is used for indicating at least two kinds of information of:a starting position in time domain, a length in time domain, and anending position in time domain of the time-frequency resource; and/orthe first indication information is used for indicating at least twokinds of information of: a starting position in frequency domain, abandwidth, and an ending position in frequency domain of thetime-frequency resource.

In an implementation of the present disclosure, the first indicationinformation is used for indicating time domain configuration informationof an uplink and downlink frequency band corresponding to the secondnetwork device within the second period, the uplink and downlinkfrequency band includes the second frequency band causing interferenceto the first frequency band. The determination unit 610 is specificallyused for determining the time-frequency resource according to the timedomain configuration information.

In an implementation of the present disclosure, the determination unit610 is specifically used for determining a resource of the firstfrequency band within the second period except time domain unitsoverlapping with the second frequency band within the second period asthe time-frequency resource.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and/or the second frequency band is an LTE carrier oran NR carrier.

It should be understood that, the network device 600 in theimplementation of the present disclosure may correspond to the firstnetwork device in the method implementation of the present disclosure,and the above operations and other operations and/or functions of eachunit in the network device 600 are respectively for implementing thecorresponding flow of the network device in each method shown in FIG. 2to FIG. 5, and will not be repeated here for brevity.

FIG. 10 is a block diagram of a network device 700 according to animplementation of the present disclosure. The network device 700 is asecond network device, as shown in FIG. 10, the network device 700includes a sending unit 700.

The sending unit 710 is used for sending first indication information toa first network device according to interference caused by a secondfrequency band to a first frequency band, wherein the first indicationinformation is used for the first network device to determine atime-frequency resource that is capable of being used for transmitting asignal in the first frequency band.

Therefore, the network device provided in the implementation of thepresent disclosure is beneficial to reducing interference oftransmission simultaneously performed between frequency bands, therebyimproving the transmission reliability.

In an implementation of the present disclosure, the first frequency bandis used for transmitting a downlink signal and the second frequency bandis used for transmitting an uplink signal; or the first frequency bandis used for transmitting an uplink signal and the second frequency bandis used for transmitting a downlink signal.

In an implementation of the present disclosure, the first indicationinformation is used for indicating a scheduling mode of each time domainunit within a first period in the first frequency band for the firstnetwork device, and/or the first indication information is used forindicating a scheduling mode of each frequency domain unit in the firstfrequency band for the first network device.

In an implementation of the present disclosure, the scheduling modeincludes allowing scheduling, prohibiting scheduling, or scheduling byusing an adjusted or restricted level of a coding and modulation scheme.

In an implementation of the present disclosure, the first indicationinformation is used for indicating at least two kinds of information of:a starting position in time domain, a length in time domain, and aending position in time domain of the time-frequency resource; and/orthe first indication information is used for indicating at least twokinds of information of: a starting position in frequency domain, abandwidth, and an ending position in frequency domain of thetime-frequency resource.

In an implementation of the present disclosure, the first indicationinformation is used for indicating time domain configuration informationof an uplink and downlink frequency band corresponding to the secondnetwork device within a second period, and the uplink and downlinkfrequency band includes the second frequency band.

In an implementation of the present disclosure, the first indicationinformation is used for indicating the time-frequency resource of afirst terminal device, and the first terminal device is a terminaldevice to which the first network device provides a network service.

In an implementation of the present disclosure, the network device 700further includes: a receiving unit used for receiving second indicationinformation sent by the first terminal device. The second indicationinformation is used for indicating at least one of a capability of thefirst terminal device to receive a signal through the first frequencyband or interference information of the second frequency band to thefirst frequency band. The sending unit is specifically used fordetermining the time-frequency resource of the first terminal deviceaccording to the interference information; sending the first indicationinformation to the first network device.

In an implementation of the present disclosure, the interferenceinformation includes at least one of degree of impact on the firstterminal device by the interference caused by the second frequency bandto the first frequency band, or an interference type of the interferencecaused by the second frequency band to the first frequency band, whereinthe interference type includes at least one of harmonic interference orintermodulation interference.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to each frequency domain unit in the first frequency band.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and the second frequency band is an LTE carrier or anNR carrier.

In an implementation of the present disclosure, a cell corresponding tothe second frequency band is a primary cell.

It should be understood that the network device 700 in theimplementation of the present disclosure may correspond to the secondnetwork device in the method implementation of the present disclosure,and the above operations and other operations and/or functions of eachunit in the network device 700 are respectively for implementing thecorresponding flow of the network device in the method shown in FIG. 6,and will not be repeated here for brevity.

FIG.11 is a block diagram of a network device 800 according to animplementation of the present disclosure. The network device 800 is asecond network device, as shown in FIG. 11, the network device 800includes a receiving unit 810.

The receiving unit 810 is used for receiving second indicationinformation sent from a first terminal device, the second indicationinformation is used for indicating at least one of a capability of thefirst terminal device to receive a signal through a first frequencyband, or interference information of interference caused by a secondfrequency band to the first frequency band.

Therefore, the network device in the implementation of the presentdisclosure determines the time-frequency resource for the terminaldevice according to the isolation degree of interference for differentterminal devices, which can fully utilize the performance of theterminal device, therefore, it is beneficial to improving thetransmission reliability.

In an implementation of the present disclosure, the network device 800further includes a determination unit used for determining atime-frequency resource for transmitting a signal of the first terminaldevice in the first frequency band according to the second indicationinformation.

In an implementation of the present disclosure, the second frequencyband is used for transmitting an uplink signal.

In an implementation of the present disclosure, the interferenceinformation includes at least one of degree of impact on the firstterminal device by the interference caused by the second frequency bandto the first frequency band, or an interference type of the interferencecaused by the second frequency band to the first frequency band, whereinthe interference type includes at least one of harmonic interference orintermodulation interference.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to each frequency domain unit in the first frequency band.

In an implementation of the present disclosure, the second indicationinformation is used for indicating degree of impact on the firstterminal device by interference caused by the second frequency band to apart of frequency domain resources in the first frequency band.

In an implementation of the present disclosure, the capability of thefirst terminal device to receive the signal through the first frequencyband is represented by a sensitivity value of the first terminal deviceto receive the signal through the first frequency band, and/or thedegree of the impact is represented by an impact level corresponding tothe degree of the impact.

In an implementation of the present disclosure, the determination unitis specifically used for determining that the interference caused by thesecond frequency band to the first frequency band has no impact on thefirst terminal device according to the second indication information;and determining all time-frequency resources in the first frequency bandas time-frequency resources of the first terminal device.

In an implementation of the present disclosure, the network device 800further includes a sending unit used for sending first indicationinformation to the first network device, and the first indicationinformation is used for indicating the time-frequency resource of thefirst terminal device.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and the second frequency band is an LTE carrier or anNR carrier.

In an implementation of the present disclosure, a cell corresponding tothe second frequency band is a primary cell.

It should be understood that the network device 800 in theimplementation of the present disclosure may correspond to the secondnetwork device in the method implementation of the present disclosure,and the above operations and other operations and/or functions of eachunit in the network device 800 are respectively for implementing thecorresponding flow of the network device in the method shown in FIG. 7,and will not be repeated here for brevity.

FIG. 12 is a block diagram of a terminal device 900 according to animplementation of the present disclosure. The network device 900 is afirst terminal device, as shown in FIG. 12, the terminal device 900includes a sending unit 910.

The sending unit 910 is used for sending second indication informationto a second network device, the second indication information is usedfor indicating at least one of a capability of the first terminal deviceto receive a signal through a first frequency band, or interferenceinformation of interference caused by a second frequency band to a firstfrequency band.

Therefore, the terminal device of the implementation of the presentdisclosure reports the isolation degree to the network device, so thatthe network device can determine the time-frequency resource for theterminal device, which can make full use of the performance of theterminal device, thus it is beneficial to improving the transmissionreliability.

In an implementation of the present disclosure, the second frequencyband is used for transmitting an uplink signal.

In an implementation of the present disclosure, the interferenceinformation includes at least one of degree of impact on the firstterminal device by the interference caused by the second frequency bandto the first frequency band, or an interference type of the interferencecaused by the second frequency band to the first frequency band, whereinthe interference type includes at least one of harmonic interference orintermodulation interference.

In an implementation of the present disclosure, the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to each frequency domain unit in the first frequency band.

In an implementation of the present disclosure, the second indicationinformation is used for indicating degree of impact on the firstterminal device by interference caused by the second frequency band to apart of frequency domain resources in the first frequency band.

In an implementation of the present disclosure, the capability of thefirst terminal device to receive the signal through the first frequencyband is represented by a sensitivity value of the first terminal deviceto receive the signal through the first frequency band, and/or thedegree of the impact is represented by an impact level corresponding tothe degree of the impact.

In an implementation of the present disclosure, the first frequency bandis an NR carrier, and the second frequency band is an LTE carrier or anNR carrier.

In an implementation of the present disclosure, a cell corresponding tothe second frequency band is a primary cell.

In an implementation of the present disclosure, the sending unit isspecifically used for sending a first message to the second networkdevice, wherein the first message carries an access capability of thefirst terminal device and the second indication information; or sendingthe second indication information to the second network device whenenabling carrier aggregation; or sending the second indicationinformation to the second network device when determining that multiplefrequency bands configured for the first terminal device are capable ofgenerating interference.

It should be understood that the terminal device 900 according to theimplementation of the present disclosure may correspond to the terminaldevice in the method of the present disclosure, and the above-mentionedand other operations and/or functions of various units in the terminaldevice 900 are respectively for implementing the corresponding processesof the terminal device in the method shown in FIG. 8, and will not berepeated here for brevity.

As shown in FIG. 13, an implementation of the present disclosureprovides a network device 1000. The network device 1000 may be thenetwork device 600 in FIG. 9, and may be used for performing thecontents for the first network device corresponding to the methods inFIG. 2 to FIG. 5. The network device 1000 includes an input interface1010, an output interface 1020, a processor 1030, and a memory 1040. Theinput interface 1010, the output interface 1020, the processor 1030, andthe memory 1040 may be connected through a bus system. The memory 1040is used for storing programs, instructions, or codes. The processor 1030is used for executing programs, instructions, or codes in the memory1040 to control the input interface 1010 to receive signals, to controlthe output interface 1020 to send signals, and to complete theoperations in the foregoing method implementations.

Therefore, the network device provided in the implementation of thepresent disclosure is beneficial to reducing interference oftransmissions simultaneously performed between frequency bands, therebyimproving the transmission reliability.

It should be understood that in the implementation of the presentdisclosure, the processor 1030 may be a Central Processing Unit (CPU),or the processor 1030 may be other general purpose processors, digitalsignal processors (DSP), application specific integrated circuits(ASIC), Field programmable gate arrays (FPGA) or other programmablelogic devices, discrete gate or transistor logic devices, discretehardware components, etc. The general purpose processor may be amicroprocessor or the processor may be any conventional processor or thelike.

The memory 1040 may include a read only memory and a random accessmemory, and provide instructions and data to the processor 1030. Aportion of memory 1040 may include non-volatile random access memory.For example, the memory 1040 may also store type information of adevice.

In implementation processes, various acts of the methods described abovemay be accomplished by integrated logic circuits of hardware orinstructions in the form of software in the processor 1030. The acts ofthe method disclosed in connection with the implementations of thepresent disclosure may be directly embodied to be accomplished by anexecution of the hardware processor or by the combination of hardwareand software modules in the processor. The software modules may belocated in a storage medium commonly used in the art, such as a randomaccess memory, flash memory, read-only memory, programmable read-onlymemory or electrically erasable programmable memory, or register. Thestorage medium is located in the memory 1040, and the processor 1030reads the information in the memory 1040, and accomplishes the contentsof the above method in combination with its hardware. In order to avoidrepetition, it will not be described in detail here.

In a specific implementation, the receiving unit in the network device600 may be implemented by the input interface 1010 in FIG. 13, and thedetermination unit 610 in the network device 600 may be implemented bythe processor 1030 in FIG. 13.

As shown in FIG. 14, an implementation of the present disclosureprovides a network device 1100. The network device 1100 may be thenetwork device 700 in FIG. 10, and may be used for performing thecontents for the second network device corresponding to the method inFIG. 6. The network device 1100 includes an input interface 1110, anoutput interface 1120, a processor 1130, and a memory 1140. The inputinterface 1110, the output interface 1120, the processor 1130, and thememory 1140 may be connected through a bus system. The memory 1140 isused for storing programs, instructions, or codes. The processor 1130 isused for executing programs, instructions, or codes in the memory 1140to control the input interface 1110 to receive signals, to control theoutput interface 1120 to send signals, and to complete the operations inthe foregoing method implementations.

Therefore, the network device provided in the implementation of thepresent disclosure is beneficial to reducing interference oftransmissions simultaneously performed between frequency bands, therebyimproving the transmission reliability.

It should be understood that in the implementation of the presentdisclosure, the processor 1130 may be a Central Processing Unit (CPU),or the processor 1130 may be other general purpose processors, digitalsignal processors (DSP), application specific integrated circuits(ASIC), Field programmable gate arrays (FPGA) or other programmablelogic devices, discrete gate or transistor logic devices, discretehardware components, etc. The general purpose processor may be amicroprocessor or the processor may be any conventional processor or thelike.

The memory 1140 may include a read only memory and a random accessmemory, and provide instructions and data to the processor 1130. Aportion of memory 1140 may include non-volatile random access memory.For example, the memory 1140 may also store type information of adevice.

In implementation processes, various acts of the methods described abovemay be accomplished by integrated logic circuits of hardware orinstructions in the form of software in the processor 1130. The acts ofthe method disclosed in connection with the implementations of thepresent disclosure may be directly embodied to be accomplished by anexecution of the hardware processor or by the combination of hardwareand software modules in the processor. The software modules may belocated in a storage medium commonly used in the art, such as a randomaccess memory, flash memory, read-only memory, programmable read-onlymemory or electrically erasable programmable memory, or register. Thestorage medium is located in the memory 1140, and the processor 1130reads the information in the memory 1140, and accomplishes the contentsof the above method in combination with its hardware. In order to avoidrepetition, it will not be described in detail here.

In a specific implementation, the sending unit in the network device 700may be implemented by the output interface 1120 in FIG. 14, and thereceiving unit in the network device 700 may be implemented by the inputinterface 1110 in FIG. 14.

As shown in FIG. 15, an implementation of the present disclosureprovides a network device 1200. The network device 1200 may be thenetwork device 800 in FIG. 11, and may be used for performing thecontents for the second network device corresponding to the method inFIG. 7. The network device 1200 includes an input interface 1210, anoutput interface 1220, a processor 1230, and a memory 1240. The inputinterface 1210, the output interface 1220, the processor 1230, and thememory 1240 may be connected through a bus system. The memory 1240 isused for storing programs, instructions, or codes. The processor 1230 isused for executing programs, instructions, or codes in the memory 1240to control the input interface 1210 to receive signals, to control theoutput interface 1220 to send signals, and to complete the operations inthe foregoing method implementations.

Therefore, the network device in the implementation of the presentdisclosure determines the time-frequency resource for the terminaldevice according to the isolation degrees of interference for differentterminal devices, which can fully utilize the performance of theterminal device, therefore, it is beneficial to improving thetransmission reliability.

It should be understood that in the implementation of the presentdisclosure, the processor 1230 may be a Central Processing Unit (CPU),or the processor 1230 may be other general purpose processors, digitalsignal processors (DSP), application specific integrated circuits(ASIC), Field programmable gate arrays (FPGA) or other programmablelogic devices, discrete gate or transistor logic devices, discretehardware components, etc. The general purpose processor may be amicroprocessor or the processor may be any conventional processor or thelike.

The memory 1240 may include a read only memory and a random accessmemory, and provide instructions and data to the processor 1230. Aportion of memory 1240 may include non-volatile random access memory.For example, the memory 1240 may also store type information of adevice.

In implementation processes, various acts of the methods described abovemay be accomplished by integrated logic circuits of hardware orinstructions in the form of software in the processor 1230. The acts ofthe method disclosed in connection with the implementations of thepresent disclosure may be directly embodied to be accomplished by anexecution of the hardware processor or by the combination of hardwareand software modules in the processor. The software modules may belocated in a storage medium commonly used in the art, such as a randomaccess memory, flash memory, read-only memory, programmable read-onlymemory or electrically erasable programmable memory, or register. Thestorage medium is located in the memory 1240, and the processor 1230reads the information in the memory 1240, and accomplishes the contentsof the above method in combination with its hardware. In order to avoidrepetition, it will not be described in detail here.

In a specific implementation, the determination unit in the networkdevice 800 may be implemented by the processor 1230 in FIG. 15, and thereceiving unit in the network device 800 may be implemented by the inputinterface 1210 in FIG. 15.

As shown in FIG. 16, an implementation of the present disclosureprovides a terminal device 1300. The terminal device 1300 may be theterminal device 900 in FIG. 12, and may be used to perform the contentsfor the first terminal device corresponding to the method in FIG. 8. Theterminal device 1300 includes an input interface 1310, an outputinterface 1320, a processor 1330, and a memory 1340. The input interface1310, the output interface 1320, the processor 1330, and the memory 1340may be connected through a bus system. The memory 1340 is used forstoring programs, instructions, or codes. The processor 1330 is used forexecuting programs, instructions, or codes in the memory 1340 to controlthe input interface 1310 to receive signals, to control the outputinterface 1320 to send signals, and to complete the operations in theforegoing method implementations.

Therefore, the terminal device of the implementation of the presentdisclosure can make the network device determine the time-frequencyresource for the terminal device by reporting the isolation degree tothe network device, and which can make full use of the performance ofthe terminal device, thus it is beneficial to improving the transmissionreliability.

It should be understood that in the implementation of the presentdisclosure, the processor 1330 may be a Central Processing Unit (CPU),or the processor 1330 may be other general purpose processors, digitalsignal processors (DSP), application specific integrated circuits(ASIC), Field programmable gate arrays (FPGA) or other programmablelogic devices, discrete gate or transistor logic devices, discretehardware components, etc. The general purpose processor may be amicroprocessor or the processor may be any conventional processor or thelike.

The memory 1340 may include a read only memory and a random accessmemory, and provide instructions and data to the processor 1330. Aportion of memory 1340 may include non-volatile random access memory.For example, the memory 1340 may also store type information of adevice.

In implementation processes, various acts of the methods described abovemay be accomplished by integrated logic circuits of hardware orinstructions in the form of software in the processor 1330. The acts ofthe method disclosed in connection with the implementations of thepresent disclosure may be directly embodied to be accomplished by anexecution of the hardware processor or by the combination of hardwareand software modules in the processor. The software modules may belocated in a storage medium commonly used in the art, such as a randomaccess memory, flash memory, read-only memory, programmable read-onlymemory or electrically erasable programmable memory, or register. Thestorage medium is located in the memory 1340, and the processor 1330reads the information in the memory 1340, and accomplishes the contentsof the above method in combination with its hardware. In order to avoidrepetition, it will not be described in detail here.

In a specific implementation, the sending unit in the terminal device900 may be implemented by the output interface 1320 in FIG. 16.

Those of ordinary skill in the art will recognize that the example unitsand algorithm acts described in connection with the implementationsdisclosed herein may be implemented in electronic hardware, or acombination of computer software and electronic hardware. Whether thesefunctions are implemented in hardware or software depends on a specificapplication and design constraint of the technical solution. Skilled inthe art may use different manners to realize the described functions foreach particular application, but such realization should not beconsidered to be beyond the scope of the present disclosure.

Those skilled in the art may clearly understand that for convenience andconciseness of description, the specific working process of the system,device and unit described above may refer to the corresponding processin the aforementioned implementations of methods, and details are notdescribed herein again.

In several implementations provided by the present disclosure, it shouldbe understood that the disclosed system, device and method may beimplemented in other ways. For example, the apparatus implementationdescribed above is only illustrative, for example, the division of theunit is only a logical function division, and there may be other ways ofdivision in actual implementation, for example, multiple units orcomponents may be combined or integrated into another system, or somefeatures may be ignored or not executed. On the other hand, the mutualcoupling or direct coupling or communication connection shown ordiscussed may be indirect coupling or communication connection throughsome interfaces, devices or units, and may be in electrical, mechanicalor other forms.

The unit described as a separate component may or may not be physicallyseparated, and the component shown as a unit may or may not be aphysical unit, i.e., may be located in one place or may be distributedover multiple network units. Some or all of the units may be selectedaccording to practical needs to achieve a purpose of the solution of theimplementations.

In addition, various functional units in various implementations of thepresent disclosure may be integrated in one processing unit, or variousunits may be physically present separately, or two or more units may beintegrated in one unit.

The functions may be stored in a computer readable storage medium ifimplemented in a form of software functional units and sold or used as aseparate product. Based on this understanding, the technical solution ofthe present disclosure, in essence, or the part contributing to theexisting art, or the part of the technical solution, may be embodied inthe form of a software product stored in a storage medium, includingseveral instructions for causing a computer device (which may be apersonal computer, a server, or a network device, etc.) to perform allor part of the acts described in various implementations of the presentdisclosure. The aforementioned storage medium includes various mediacapable of storing program codes, such as a U disk, a mobile hard disk,a read-only memory (ROM), a random access memory (RAM), a magnetic disk,or an optical disk.

The foregoing are merely example implementations of the presentdisclosure, but the protection scope of the present disclosure is notlimited thereto. Any person skilled in the art may easily conceivevariations or substitutions within the technical scope disclosed by thepresent disclosure, which should be included within the protection scopeof the present disclosure. Therefore, the protection scope of thepresent disclosure shall be the protection scope defined by the claims.

1. A method for transmitting a signal, comprising: determining, by afirst network device, a time-frequency resource for transmitting asignal in a first frequency band corresponding to the first networkdevice; and transmitting, by the first network device, a signal with thea first terminal device on the time-frequency resource.
 2. The method ofclaim 1, wherein the method further comprises: receiving, by the firstnetwork device, first indication information; wherein determining, bythe first network device, the time-frequency resource for transmittingthe signal in the first frequency band corresponding to the firstnetwork device, comprises: determining, by the first network device, thetime-frequency resource according to the first indication information.3. The method of claim 2, wherein the first indication information issent based on interference caused by a second frequency band to thefirst frequency band.
 4. The method of claim 3, wherein the firstfrequency band is used for transmitting a downlink signal and the secondfrequency band is used for transmitting an uplink signal; or the firstfrequency band is used for transmitting an uplink signal and the secondfrequency band is used for transmitting a downlink signal.
 5. The methodof claim 2, wherein the first indication information is used forindicating at least one of a scheduling mode of each time domain unitwithin a first period in the first frequency band for the first networkdevice, or a scheduling mode of each frequency domain unit in the firstfrequency band for the first network device; wherein determining, by thefirst network device, the time-frequency resource according to the firstindication information, comprises: determining, by the first networkdevice, the time-frequency resource according to at least one of thescheduling mode of each time domain unit or the scheduling mode of eachfrequency domain unit.
 6. The method of claim 5, wherein the schedulingmode comprises allowing scheduling, prohibiting scheduling, orscheduling by using an adjusted or restricted level of a coding andmodulation scheme.
 7. The method of claim 2, wherein the firstindication information is used for at least one of: indicating at leasttwo of: a starting position in time domain, a length in time domain oran ending position in time domain of the time-frequency resource; orindicating at least two of: a starting position in frequency domain, abandwidth or an ending position in frequency domain of thetime-frequency resource.
 8. The method of claim 2, wherein the firstindication information is used for indicating time domain configurationinformation of an uplink and downlink frequency band corresponding to asecond network device within a second period, and the uplink anddownlink frequency band includes a second frequency band causinginterference to the first frequency band; wherein determining, by thefirst network device, the time-frequency resource according to the firstindication information, comprises: determining, by the first networkdevice, the time-frequency resource according to the time domainconfiguration information.
 9. (canceled)
 10. The method of claim 3,wherein the first frequency band is a new radio (NR) carrier, and/or thesecond frequency band is a long term evolution (LTE) carrier or an NRcarrier.
 11. The method of claim 3, wherein a cell corresponding to thesecond frequency band is a primary cell.
 12. (canceled)
 13. A method fortransmitting a signal, comprising: sending, by a second network device,first indication information to a first network device according tointerference caused by a second frequency band to a first frequencyband, wherein the first indication information is used for the firstnetwork device to determine a time-frequency resource that is capable ofbeing used for transmitting a signal in the first frequency band. 14-20.(canceled)
 21. The method of claim 13, wherein interference informationcomprises at least one of degree of impact on a first terminal device bythe interference caused by the second frequency band to the firstfrequency band, or an interference type of the interference caused bythe second frequency band to the first frequency band, wherein theinterference type comprises at least one of harmonic interference orintermodulation interference, and wherein the second indicationinformation is specifically used for indicating degree of impact on thefirst terminal device by interference caused by the second frequencyband to each frequency domain unit in the first frequency band. 22-35.(canceled)
 36. A method for transmitting a signal, comprising: sending,by a first terminal device, second indication information to a secondnetwork device, wherein the second indication information is used forindicating at least one of a capability of the first terminal device toreceive a signal through a first frequency band or interferenceinformation of interference caused by a second frequency band to a firstfrequency band.
 37. The method of claim 36, wherein the second frequencyband is used for transmitting an uplink signal.
 38. The method of claim36, wherein the interference information comprises at least one ofdegree of impact on the first terminal device by the interference causedby the second frequency band to the first frequency band, or aninterference type of the interference caused by the second frequencyband to the first frequency band, wherein the interference typecomprises at least one of harmonic interference or intermodulationinterference. 39-41. (canceled)
 42. The method of claim 36, wherein thefirst frequency band is a new radio (NR) carrier and the secondfrequency band is a long term evolution (LTE) carrier or an NR carrier.43. The method of claim 36, wherein a cell corresponding to the secondfrequency band is a primary cell.
 44. The method of claim 36, whereinsending, by the first terminal device, the second indication informationto the second network device comprises: sending, by the first terminaldevice, a first message to the second network device, wherein the firstmessage carries an access capability of the first terminal device andthe second indication information.
 45. A network device, wherein thenetwork device comprises a memory, a processor, an input interface, andan output interface, the memory, the processor, the input interface andthe output interface are connected through a bus system, the memory isused for storing instructions, and the processor is used for executingthe instructions stored in the memory to perform the method of claim 1.46-56. (canceled)
 57. A network device, wherein the network devicecomprises a memory, a processor, an input interface, and an outputinterface, the memory, the processor, the input interface and the outputinterface are connected through a bus system, the memory is used forstoring instructions, and the processor is used for executing theinstructions stored in the memory to perform the method of claim 13.58-79. (canceled)
 80. A terminal device, wherein the terminal devicecomprises a memory, a processor, an input interface, and an outputinterface, the memory, the processor, the input interface and the outputinterface are connected through a bus system, the memory is used forstoring instructions, and the processor is used for executing theinstructions stored in the memory to perform the method of claim 36.81-87. (canceled)
 88. The method of claim 2, wherein a bit map is usedto indicate each frequency domain unit in the first indicationinformation, and the bit map comprises: x0, representing that thefrequency domain unit is used for transmitting a signal; and x1,representing that the frequency domain unit is not intended to be usedfor transmitting a signal.